C://Program Crash

Crash Reporter is saying C://Program process has crashed. This happens when I opening the UnrealEngineLauncher.exe.

Anyone know why this is happening or how to fix it?

Log Says:
[2014.05.30-01.59.26:506][ 0]LogWindows: Assertion failed: SUCCEEDED(Hr) [File:D:\BuildFarm\buildmachine_++depot+UE4-LauncherReleases\Engine\Source\Developer\StandaloneRenderer\Private\Windows\D3D\SlateD3DRenderer.cpp] [Line: 105]

Address = 0x3fe979f6 (filename not found) [in C:\Program Files\Unreal Engine\Launcher\Engine\Binaries\Win64\UnrealEngineLauncher.exe]

Computer is:
i5-3570 CPU @3.40GHz
8gb RAM
nVidia 660Ti 3GB

Some other users with the Assertion failed: SUCCEEDED(Hr) issue have found that updating graphics drivers and/or windows updates fix this problem